AdvancedServerList

This update bumps the API version used for the Paper version to 1.20.6. With that said should the plugin remain backwards compatible (Tested on a 1.20.4 Paper Server).

This update also uses the new BuildInfo class introduced in Paper that will display more useful information at startup, namely, if present will the plugin now print either Platform: Paper (ID: papermc:paper, Version: 1.20.6, Build: 79) if a build number is known or Platform: Paper (ID: papermc:paper, Version: 1.20.6) if no build is known.
On older versions will it print out the previous info.

Finally, this version also fixes a small bug where a backup is created of the config.yml on first creation due to it using config-version instead of the expected configVersion key.